The station is the only interchange station not to be part of two or more lines, due to it being an interchange between the main East West Line and the Changi Airport Branch Line. The station is also the only MRT interchange station to have only one alphanumeric symbol (as opposed to other interchange stations, which have at least two).

Similar to other stations on the eastern section of the East West Line, the station's design consists of white-washed walls and a dome-shaped ceiling, with a glass roof running along the middle of the station.

The station was originally not going to be open with the rest of the East West Line in 1988 to 1989 as there were only private houses surrounding it, but increasing pressure from Members of Parliament and the public forced SMRT to open this station. When it opened, the demand was extremely stagnant with private houses, Bedok South housing estate and Fengshan housing estate. The demand increased when Singapore Expo and the MRT line to Changi Airport opened.

As with most of the above-ground stations built in the past along the East West Line, it was built without platform screen doors. Due to the 2010 accident, installation of the half-height screen doors at this station commenced on 10 January 2011 and operations commenced on 30 March 2011.[1]

The final elevated station installed with Rite Hite Revolution High Volume, Low Speed (HVLS) fans. It went operational on 5 January 2013 and this marked the completion of all HVLS fans installation on both North South Line and East West Line.

The addition of new platform was announced by Land Transport Authority on 25 August 2014 to allow trains to arrive and depart at shorter intervals and an improvement in waiting times with the enhancements. Construction will commence in 2016, and are expected to be completed in 2024, with train disruptions to occur for the second time when the tracks are completed, including the tracks between Bedok – Tanah Merah and Tanah Merah – Simei/Expo. [2]

Platform A and C without PSD.

A C651 train at the station bound for Changi Airport terminal without PSD.